The angular speed of a body changes from `omega_1` to `omega_2` without applying a torque but due to change in its moment of inertia. The ratio of radii of gyration in the two cases is :-

The angular velocity of the body changes from omega_1 to omega_2 without applying torque but by changing its M.I. The ratio of initial radius of gyration to final radius of gyration is

The angular velocity of a body is increased from 5 rad/s to 20 rad/s, without applying a torque but by changing its moment of Inertia. What is the relation between the new radius of gyration and the initial radius of gyration?

The angular velocity of a body changes from one revolution per 9 second to 1 revolution per second without applying any torque. The ratio of its radius of gyration in the two cases is

The position of axis of rotation of a body is changed so that its moment of inertia decreases so that its moment of inertia decreases by 36%. The % change in its radius of gyration is

A man spinning in free space can change the moment of inertia of his body (I) by changing its shape. In this process,